Microsoft 365 security
Microsoft 365 Security Services for Small Businesses
Tecnico Desk helps small businesses review, harden, and monitor Microsoft 365 environments to reduce risk, protect identities, secure email, and support cyber insurance readiness.
Why Microsoft 365 Security Matters
Microsoft 365 is the backbone of most small businesses. Email, files, identity, and collaboration all live inside one platform. But the default configuration leaves critical gaps that attackers exploit every day.
MFA not enforced everywhere
Many tenants have MFA enabled but not enforced for all users, leaving admin and service accounts exposed to credential theft.
Too many global admins
Small businesses often have multiple users with Global Administrator privileges when most only need limited roles.
Email forwarding blind spots
Hidden forwarding rules can silently redirect sensitive email to external addresses. Most business owners never check for this.
Over-sharing in SharePoint
Default sharing settings often allow anyone with a link to access files. External sharing and guest users accumulate over time.
No security baseline applied
Microsoft provides security defaults and baselines, but many tenants run with these features disabled or misconfigured.
Guest and former user access
Old guest accounts, former employees, and stale user accounts remain active in many tenants, creating persistent access risk.
What We Review
We review your Microsoft 365 tenant against practical security standards. Every review is scoped to your current licensing and business needs.
Entra ID and MFA
Review identity configuration, MFA enforcement, and authentication methods across all users.
Admin accounts
Identify all Global Admin and privileged roles. Recommend least-privilege role assignments.
Conditional Access
Review Conditional Access policies where Business Premium or higher licensing is available.
Exchange Online security
Review anti-phishing, anti-spam, and anti-malware policies in Exchange Online Protection.
Forwarding rules
Identify external forwarding rules, transport rules, and inbox rules that could exfiltrate email.
SharePoint and OneDrive sharing
Review sharing settings, external access, public links, and site-level permissions.
Guest users
Audit guest and external user accounts. Identify stale guests with ongoing access to your data.
Defender and security baseline
Review Microsoft Defender settings and security baseline configuration where licensed.
Backup readiness
Assess backup coverage for Exchange, SharePoint, OneDrive, and Teams data.
AI exposure and Copilot readiness
Where applicable, review data exposure and access controls that affect AI tools like Microsoft Copilot.
What We Harden
After the review, we make configuration changes based on what we find. Every change is documented and explained.
Enforce MFA for all users
Enable and enforce multi-factor authentication across all user accounts, including admin and service accounts. Configure security defaults or Conditional Access policies based on licensing.
Reduce admin privileges
Remove unnecessary Global Admin access. Assign least-privilege roles that match what each person actually needs.
Tighten email security
Configure anti-phishing policies, block external forwarding, remove suspicious inbox rules, and strengthen Exchange Online Protection settings.
Restrict sharing and guest access
Tighten SharePoint and OneDrive sharing defaults. Remove stale guest users. Restrict external sharing to specific domains where appropriate.
How This Supports Cyber Insurance Readiness
Cyber insurance applications increasingly ask specific questions about your Microsoft 365 configuration. The controls we review and harden directly address the most common insurer requirements.
MFA enforcement
Insurers ask whether MFA is enabled for all users, especially admin accounts and remote access. We configure and document MFA enforcement across the tenant.
Email security controls
SPF, DKIM, DMARC, anti-phishing policies, and external forwarding controls are common insurance requirements. We review and configure these settings.
Access controls and admin review
Insurers want to know who has admin access and how that access is controlled. We document admin roles and recommend least-privilege configurations.
Endpoint visibility
Where Defender or endpoint protection is licensed, we review device compliance and protection status to support endpoint security questions on insurance applications.
Tecnico Ready and Tecnico Defend
Microsoft 365 security review and hardening is part of a broader security approach. Here is how the pieces connect.
Tecnico Ready
Tecnico Ready is a structured security assessment that includes a full Microsoft 365 security review. It covers identity, email, sharing, admin access, backup readiness, and more. The assessment produces a prioritized findings report with actionable recommendations.
Learn about Tecnico ReadyTecnico Defend
Tecnico Defend provides ongoing security monitoring for Microsoft 365 environments. After the initial review and hardening, Defend watches for configuration drift, suspicious sign-ins, new forwarding rules, and changes to admin roles. Monthly reporting keeps you informed.
Learn about Tecnico DefendFrequently Asked Questions
Does Tecnico Desk manage my Microsoft 365 tenant?
Tecnico Desk reviews and hardens Microsoft 365 security settings. Ongoing management is available through Tecnico Manage.
Do I need specific Microsoft 365 licenses?
Some security features require Business Premium or higher licenses. We review what is available with your current licensing.
Does this include Copilot security?
Where Copilot is licensed, we review data exposure and access controls that affect what Copilot can access.
How does this support cyber insurance?
Many cyber insurance applications ask about MFA, email security, admin access, and endpoint protection. We help configure and document these controls.
Secure Your Microsoft 365 Environment
Start with a Security Fit Call to discuss your Microsoft 365 configuration and identify where your tenant may be exposed.